function loadMapAtElement(mapDiv) {
    var latlng = new google.maps.LatLng(18.539269, -72.336408);
    var myOptions = {
        zoom: 8,
        center: latlng,
        mapTypeId: google.maps.MapTypeId.ROADMAP
    };
    var map = new google.maps.Map(mapDiv,
        myOptions);
    return map;
}